Answer:
2.82 * 10^-25 g
Explanation:
Given that :
Atomic number = 17
Mass of an atom of the element =?
Avogadro's constant = 6.022 * 10^23
The mass of an atom. Of the element is :
Atomic mass / Avogadro's constant
= 17 / 6.022 * 10^23
= 2.82 * 10^-25
=
Answer:
B) extensive/intensive
Explanation:
An extensive property is a property of a component or system that is a function of the whole component. It is a kind of property that changes if the material is added or subtracted to the component.
An intensive property is a property of a material that does not depend on the amount or shape of the material, a property of a material at a specific point in time.
From the question, we can conclude that heat is an example of extensive property and temperature is an example of an intensive property.
A molecule can<span> possess </span>polar bonds<span> and still be </span>non polar. If the polar bonds<span> are evenly (or symmetrically) distributed, the </span>bond<span> dipoles cancel and </span>do<span> not create a molecular dipole.</span>
Answer:
1.8 moles
Explanation:
Number of moles = ?
Pressure = 15.4 atm
Volume = 2.92L
Temperature = 32°C = (32 + 273.15)K = 305.15K
From ideal gas equation,
PV = nRT
P = pressure of the ideal gas
V = volume in which the gas occupies
n = number of moles
R = ideal gas constant = 0.082J/mol.K
T = temperature of the gas
PV = nRT
n = PV / RT
n = (15.4 * 2.92) / (0.082 * 305.15)
n = (44.968 / 25.0223)
n = 1.797 moles = 1.8 moles
Number of moles of the gas is 1.8 moles
An r-selected species reproduces much faster than K-selected species.
r-selected species focuses on maturing and reproducing quickly. r-selected species will probably reproduce when the water supply is there for the short period of time; thus, increasing the chance of the r-selected species of surviving.
K-selected species, on the other hand, focus on raising their young and reproduce later. Since the K-selected species take long to mature before reproducing, water supply may run out before they have a chance of fully maturing; thus, K-selected species have a lower chance of survival.
Hope this helps.
If you need anything more, feel free to comment! Have an awesome day! :)
~Collinjun0827, Junior Moderator